Seed Dispersal
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Transcript of Seed Dispersal
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Seed Dispersal
How do seeds “get around”?
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How is it helpful for seeds to be carried to a new place?
(Think of as many reasons as you can.)
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There are several ways that seeds can “travel” to a new spot.
• Wind• Water• Gravity• Explosively• Animal help
– Eaten– Hitchhiking
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Number 1-15 on a piece of paper. For each of the following pictures of seeds/fruits, describe how the seed
is most likely dispersed(wind, water, gravity, explosively, or
animal - eaten or hitchhiking).
For some, you might put two or more possibilities.
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Number 1. Pretty yellow dandelions turn into these white puffballs of
seeds. How do these seeds travel?
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Number 2. How about these? They are called burs (short for burdock).
(Do they remind you of velcro?)
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• Number 3. Coconuts are the largest seed known. How do THEY travel?
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• Number 4. On Martha’s Vineyard there are many oak trees. How do you think
their seeds (acorns) get dispersed?
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Number 5. Look closely at these green seed pods. Can you see the seeds in the picture?
How do these seeds get dispersed?
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Number 6. After hiking in the woods, don’t be surprised to find these “stick tights”
sticking to your clothes.
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Number 7. Some seeds are hidden in sweet berries! How does this help the seed get
dispersed?
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Number 8. Do you recognize this milkweed? How do these seeds get dispersed?
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Number 9. Here are several seeds that all use the same dispersal technique. What is
that technique?
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Number 10. These are the seeds of impatiens, also called “touch-me-nots”. The long pod is the seed pod before it is touched, and the other ones are after it has been touched! How are these seeds
dispersed?
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Number 11. It might not be pleasant to do, but if you look closely at these bird droppings, you might
notice an interesting ingredient!
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Number 12. These are from plants called cat-tails, which grow in swamps. Can you guess why they
are called that? How do these seeds get dispersed?
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Number 13. These beautiful seeds are called sea beans. You can find them on the
beaches of many tropical islands!
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Number 14. All of these seeds have one thing in common - how they are dispersed!
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Number 15. This seed is over 12 inches long! How could it possibly be dispersed?